/Engine/Source/Runtime/Experimental/Chaos/Public/Chaos/Properties.h
namespace Chaos { template<typename T, EChaosProperty PropName> [FChaosArchive](API\Runtime\Chaos\Chaos\FChaosArchive) & Chaos::operator<< ( [FChaosArchive](API\Runtime\Chaos\Chaos\FChaosArchive) & Ar, [TChaosProperty](API\Runtime\Chaos\Chaos\TChaosProperty)< T, PropName > & Prop ) }